/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package actions;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author mpastarini
 */
public class ActionController extends HttpServlet {

    /**
     * Establecer el valor de esta variable según la ubicación del proyecto
     */
    public static final String PATH_SRC = "D:\\Mis Documentos\\Proyectos Netbeans\\PrestadoraProject\\src\\java\\";
    
    /** 
     * Print internal error.
     * @param response servlet response
     * @param ex exception
     * @throws IOException if an I/O error occurs
     */
    private void printInternalError(HttpServletResponse response, Exception ex) throws IOException {
        PrintWriter out = response.getWriter();
        try 
        {
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Error</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Reporte de error</h1>");
            out.println("<p>" + ex.getMessage() + "</p>");
            out.println("</body>");
            out.println("</html>");
        } 
        finally 
        {            
            out.close();
        }            
    }

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=ISO-8859-15");

        String action = request.getParameter("action");
        if(action == null)
        {
            action = "ObraSocialGet";
        }

        try 
        {
            Action a = ActionFactory.getAction(action);
            a.setServletContext(getServletContext());
            a.execute(request, response);
        }
        catch(NullPointerException ex1) 
        {
            this.printInternalError(response, ex1);
        }
        catch(Exception ex2) 
        {
            this.printInternalError(response, ex2);
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
